4 ms·
Also consider not doing mesh if you need a longer life. I would expect that LoRa modules could cover the same distance a mesh could, and would only transmit the
by SlowBro 9y ago
Also consider not doing mesh if you need a longer life. I would expect that LoRa modules could cover the same distance a mesh could, and would only transmit then power down. Some receiving would be done as well but not as much as a mesh. By contrast a mesh node is listening and transmitting quite often.
- retSava 9y agoYes, a transmit-only approach would be the most power-saving approach here, but you'd lose the ability to adjust configuration on-the-fly, and firmware updates over the air (FOTA), among other things. LoRa has excellent long-range properties thanks to sub-GHz, modulation, and low bit-rate, but you can just barely send something back to it and certainly not FOTA it. The device used in the example post (and here: http://www.thingsquare.com/blog/articles/sensortag-power/ http://www.thingsquare.com/blog/articles/sensortag-power/ ) doesn't route even if part of a mesh. Ie, it's powered down for the most part so won't route packets for others, but it can still be many hops away from the gateway.
- SlowBro 9y agoSorry I didn't mean transmit ONLY, just primarily. Of course you can still receive updates with such a device.
- SlowBro 9y agoThings Network describes a method of updating LoRa device firmwares: https://www.thethingsnetwork.org/article/firmware-updates-over-low-power-wide-area-networks https://www.thethingsnetwork.org/article/firmware-updates-ov...